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Robin Questions:From Wisconsin

by way of halvor@ties.k12.mn.us (UPTON@uwplatt.edu)
Wed, 20 Mar 1996 14:40:42 -0600

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Question#1. Why do robins migrate leaving the warm regions to go north?
Question#2. If some robins overwinter in northern lattitudes and stay there
year-round is the robin considered a true migratory bird?
Question#3. Does the frost level in the ground play a more significant role in
robins migrating than the 36 degree isotherm theory and air temperature?

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Robin Questions:From Wisconsin

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